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Method for the correction of video signals
   
Document Number
US Patent 7508435
Issued Date
March 24, 2009
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Inventors
Loew; Andreas (Gross-Gerau,DE)
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Abstract
The invention relates to a method for the correction of video signals which are produced by pixel-by-pixel reading of picture cells from an optoelectronic sensor via two or more channels which have different transmission characteristics. In this case, the video signal is supplied to a processing circuit and is converted to digital pixel values. Estimated values for pixel values of another transmission channel are calculated from the digital pixel values of one transmission channel, and the estimated values and pixel values of one transmission channel are used to derive correction values, which correct differences between the estimated values and the pixel values of the relevant transmission channel, if necessary.
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Number of Claims:
12
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Owner
Thomson Licensing (Boulogne-Billancourt,FR)
Published
March 24, 2009
Application Number
10/659,686
Filed
September 9, 2003
US Classification
348/316   348/324
Int'l Classification
H04N   3/14   (20060101)   H04N   5/335   (20060101)  
Examiner
Assistant Examiner
Priority Data
Sep 12, 2002 [DE] 102 42 517
USPTO Field of Search
348/316   348/324  
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